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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JAMES Davis, oi' Bulalo, in the county of Erie, andState of New York, have invented a. new and improved Machine for SewingLogs; and I do hereby declare that the following is a full, clear, andexact description thereof, which will enable others skilled inthe artsto make and use the same, reference being had to the'accompanyingdrawings, forming part of this specification, in which- Figure 1, sheetNo. 1, is a plan or top view of my invention. I

Figure 2, sheet No. 2, a sido sectional view of the saine, taken in theline :e xdg. 1.

Figure 3, a side sectional view of a portion of the same, taken in theline y y, fig. 1.

Figure' 4, a transverse vertical section of the same, taken in the line.e e, g. 1.

Figure 5, a transverse vertical section of a portion of the saine, takenin the line as' ai', fig. 1.

Figure G, a horizontal section of a portion of the same, taken ih theline y' y', iig. 3.

Similar letters of reference indicate like parts.

This invention relates to a ncwland improved oircular-saw mill of thatclass in which a gang of saws are employed. The invention consists in animproved feeding mechanism for feeding the logs or cants to the saws, ashereinafter fully shown and described.

A A represent two frames secured to a proper base or flooring, B, andeach having an arbor or shaft, C', uponit. On these arbore or shafts, C,circular saws, D D', are key-ed at suitable distances apart to suit thethickness of the stuff to be sawed. One gang or series of saws, D, maybe placed at such a distance apart as to saw boards, and the other gang,D', adjusted or arranged at such a distance apart as to sawplanks. E E'represent two series of rollers on which the cant is placed. Theserollers, two or more of each series, are driven by gears a and shaftingb, from gearing connected with thc ii'uted feed-rollers, F, of thedevice. (See iig. 1.)

The rollers E'E' present the cants to thev feeding device of the saws.'rlhis feeding device, which constitutes the invention, is constructedand arranged as follows: In the lower parts of the frames A A', anddirectly front of thesaws D D', there are fitted i'luted rollers, F,which work` in lixed bearings, and similar luted rollers, F', are placedin the lower pants of the frames A A', at the rear of the saws, therollers F F' being in the same horizontal plane. The rollers F F' havetoothed wheels, H, on their outer ends,`and these wheels are connectedby an intermediate gear-wheel, I, as shown clearly in iig. 3, thewheeled being on shafts J, and gearing into pinions J', onl shafts K,which are driven by belts K', from a driving or power-shaft L, the'sawarbore or shafts, C, being also driven from said shaft. by belts M M.InY the frames A A', and above the iiuted rollers F F', there are-placedadjustable rollers, N N'. These rollers have smooth peripheries, andtheir journals are tted in orpass through vertical oblong slots, e, intheframes A A', and into the upper ends of vertical bars, d, the lowerends of which are pivoted to levers, 0, oneend of which are secured byfulcrum pins, e, to pendants, f, attached to the base or iiooring, B, asshown ink fig. 3. The opposite ends of the levers, O, are pivoted to theupright bars, P, which extend up by the outer sides of `the frames A A',and pass through guides, Q, the bars, P, having rack-teeth, g, made inthcmto catch on the ends of the guides Q, the teeth, g, being retainedthereon by keys or wedges, R, which are driven down between the upperparts of the bars P, as shown in iig. 3. -On each lever, O, there isplaced an adjustable weight, S, .secured in position -by a set-screw, t.By

adjusting the bars, P, higher or lower, the rollers N N' rmay be made tobear with a greater or less pressure on the log and cause the same tobear upon the lower ilut'ed rollers, F F', which feed the log to thesaws and discharge the boards or planks therefrom. In case it is desiredvto have the upper or pressure rollers, N N',

yield or lgive, the leys or wedges, R, may be removed, and the weights,S, adjusted to give the desired downward pressure to'said rollers.Directly behindeach gang of saws there are placed a series of circularplates, T: These plates are placed on shafts, U, the ends of which arefitted in slides, V, having screws, W, passing throughthem, by which theslidesl may be raised and lowered. (See iig. 5.) These circular platesare adjusted higher or lower in the saw-kerfs and prevent the saws frombinding and heating therein. They however comprise no part of thisinvention, as they are included in the subject-matter of anotherapplication. The rollers, E E', effect` a great saving in labor, as thecant may be turned over upon them direct from the carriageon which itsslabs were cut or sawn oil', and said rollers conduct at once the cantto the feed-rollers, F N,

which feed the cant to the saws, the cant of course being placed oneither series of rollers E or E, according to Whether boards oi' planksare to be sawed.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent- Adjusting the rollers N N by means of bars 0l, leversO, Weights S, notched bars P, guides Q, and wedges R, as end for thepurpse specified.

The above specification of my invention signed by me this 18th day ofJune, 1866.

i JAMES DAVIS.

Witnesses:

WM. F. MGNAMARA, ALEX. F. RoBERTs.

